package com.zzyl.serve.service.impl;

import java.util.List;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.zzyl.common.utils.DateUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import com.zzyl.serve.mapper.NursingLevelMapper;
import com.zzyl.serve.domain.NursingLevel;
import com.zzyl.serve.service.INursingLevelService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import java.util.Arrays;

/**
 * 护理等级Service业务层处理
 * 
 * @author howstrong
 * @date 2024-10-04
 */
@Slf4j
@Service
public class NursingLevelServiceImpl extends ServiceImpl<NursingLevelMapper, NursingLevel> implements INursingLevelService
{
    @Autowired
    private NursingLevelMapper nursingLevelMapper;
//注入缓存
    @Autowired
    private RedisTemplate redisTemplate;
//定义缓存key
    private static final String CACHE_KEY_PREFIX = "nursingLevel:all";

    /**
     * 查询护理等级
     * 
     * @param id 护理等级主键
     * @return 护理等级
     */
    @Override
    public NursingLevel selectNursingLevelById(Long id)
    {
        return getById(id);
    }

    /**
     * 查询护理等级列表
     * 
     * @param nursingLevel 护理等级
     * @return 护理等级
     */
    @Override
    public List<NursingLevel> selectNursingLevelList(NursingLevel nursingLevel)
    {
        return nursingLevelMapper.selectNursingLevelList(nursingLevel);
    }

    /**
     * 新增护理等级
     * 
     * @param nursingLevel 护理等级
     * @return 结果
     */
    @Override
    public int insertNursingLevel(NursingLevel nursingLevel)
    {
        boolean flag = save(nursingLevel);
        deleteCache();
        return flag ? 1 : 0;

    }

    /**
     * 修改护理等级
     * 
     * @param nursingLevel 护理等级
     * @return 结果
     */
    @Override
    public int updateNursingLevel(NursingLevel nursingLevel)
    {
        boolean flag = updateById(nursingLevel);
        deleteCache();
        return flag ? 1 : 0;
    }

    /**
     * 批量删除护理等级
     * 
     * @param ids 需要删除的护理等级主键
     * @return 结果
     */
    @Override
    public int deleteNursingLevelByIds(Long[] ids)
    {
        boolean flag = removeByIds(Arrays.asList(ids));
        deleteCache();
        return flag ? 1 : 0;
    }

    /**
     * 删除护理等级信息
     * 
     * @param id 护理等级主键
     * @return 结果
     */
    @Override
    public int deleteNursingLevelById(Long id)
    {
        boolean flag = removeById(id);
        return flag ? 1 : 0;
    }

    /**
     * 查询所有护理等级信息
     * @return
     */
    @Override
    public List<NursingLevel> findAllLevel() {

        //增加Redis缓存
        //1.查询缓存是否存在
        List<NursingLevel> list = (List<NursingLevel>) redisTemplate.opsForValue().get(CACHE_KEY_PREFIX);
        //如果存在，直接返回缓存数据
        if (list != null) {
            log.info("从缓存中获取数据");
            return list;
        }
        //如果不存在，查询数据库，将数据写入缓存，然后返回数据

        log.info("从数据库中获取数据");
        list = this.list(
                new LambdaQueryWrapper<NursingLevel>()
                        .eq(NursingLevel::getStatus, 1)
        );

        redisTemplate.opsForValue().set(CACHE_KEY_PREFIX, list);

        return list;
    }

    //删除缓存,增删改之后需要删除缓存
    private void deleteCache() {
        redisTemplate.delete(CACHE_KEY_PREFIX);
    }
}
